Bobbin-spindle.



PATENTED MAY 5, 1908.

H. WYMAN.

BOBBIN SPINDLE.

APPLIoATIoNJrILBn 1113.1, 1906.

UNTTED sTATEs PATENT oEEioE.

HORACE WYMAN, OF WORCESTER, MASSACHUSETTS, ASSIGOR TO CROMPTON & KNOWLESLOOM WORKS, A CORPORATION OF MASSACHUSETTS.

BOBBIN-SPINDLE.

Specification of Letters Patent.

Patented May 5, 1908.

Application filed. March 1, 1906. Serial No. 303,668.

To all whom 'it may concern:

Beit known that I, HORACE "WYMAN, a citizen of the United States,residing at VVorcester, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements inBobbin-Spindles, of which the following is a specification.

My invention relates to improvements in bobbin spindles, and to thatdescription of bobbin spindles which have one en'd provided with two ormore annular projections or rings thereon to engage with yielding jawsin a shuttle, and a retaining head for the bobbin at the other end,which acts also as a bearing for the filling on the bobbin.

The object of my invention is to improve upon bobbin spindles of thedescription referred to, and more particularly to provide an end withtwo or more annular projections thereon to engage the yielding jaws in ashuttle, and a spindle or support for the bobbin, made separate from thehead, and adapted to be attached thereto, and detached therefrom, andhavingV on one end a retaining head for the bobbin.

Referring to the drawing 1-Figure l is a plan view of a self-threadingshuttle of ordi nary' construction, having spindle holding jaws, andshowing a spindle embodying my improvements combined therewith, and asectional view of a iilled bobbin on the spindle. Fig. 2 shows, on anenlarged scale, a central longitudinal section of the spindle andbobbin, shown in Fig. l, detached. Fig. 3 is an end view of the spindlehead shown in Fig. 2, looking in the direction of `arrow a, same iigure,and, Fig. 4 corresponds to Fig. 2, but shows the removable retaininghead partially detached from the head of the spindle, and the bobbinmoved down slightly on the spindle.

In the accompanying drawing, 1 is a selfthreading shuttle which may beof any usual and well known construction, and is provided with a pair ofyielding holding jaws 1', in the usual way.

The spindle embodying my improvements consists of the head or end 2,having two or more annular projections 2l thereon, adapted to engagewith the jaws l in the spindle.

The head 2 has a central opening 2 therethrough, of circular shape incross section, at one side, and straight at its opposite side, as shownin Fig. 3. Vithin the opening 2 through the head 2, extends a leafspring 3, which is secured at one end, in this instance by a screw orrivet 4, at the inner end of the head 2 on the hat side of the opening2, and has at its other end a cam-shaped projection 3.

The other part of the spindle consists of a rodor support 5, forming thespindle for the bobbin 6, having filling 6 thereon.

The rod or support 5 at its inner end is preferably of reduced diameter,as shown at 5, and has a recess 5 therein to receive the cam-shapedprojections 3 on the spring 3. Above the reduced diameter 5 of thespindle 5, the spindle is of somewhat larger diameter as shown at 5, andis adapted to enter loosely the central opening 2l in the head 2. Beyondthe part 5' of the spindle 5 the diameter of the spindle is increased,as shown at 5, to correspond with the size of the central openingthrough the bobbin, being a little smaller than said opening, andforming an annular shoulder or ange to butt against the inner end ofthehead 2, as shown in Fig. 2. Between the part 5 of the spindle 5 and theouter end of the spindle, the body of the spindle is preferably ofreduced diameter, as shown.

The outer end of the spindle 5 has the head or enlarged end 7 thereon,of disk shape and adapted to extend over the tip end of the bobbin, andhaving the reduced portion 7 to extend loosely within the centralopening in the outer end of the bobbin.

The operation of my improved bobbin spindle will be readily understoodfrom the above description in connection with the drawing.

When it is desired to remove the bobbin 6 from the spindle, or to placea lspindle on the bobbin, the part 5 is drawn out from the head 2, beingyieldingly held therein by the spring 3; the bobbin is then drawn 0Hfrom the spindle 5. After a new bobbin has been placed upon the spindle5 by inserting the reduced end of the spindle throughthe central openingin the bobbin, the spindle 5 is attached to the head 2, by inserting thereduced end 5 through the central opening 2 in said head, and pushing itdown until the cam-shaped portion 3 on the spring 3 enters the recess 5on 'the reduced end 5/ of the spindle 5. The spindle 5 may beinserted inthe head 2 without regard to the position 0f It Will be understood thatthe detailsa of 1 construction of ymy improvements may be varied ifdesired.

Having thus described my invention, What l claim as new and desire tosecure by Letters Patent is:-

1. A bobbin spindle, comprising a head provided With tWo or more annularprojections, and having a central longitudinal opening therethrough, anda flat or leaf spring contained ,Within said opening, attached at oneend, and with its other end adapted to extend Within a recess in asupport for the bobbin, and said support, adapted at one end to extendloosely into the central opening in said head and to be retained thereinby said spring, and having an enlarged end or head at its other end toretain the bobbin thereon.

2. In a bobbin spindle, the combination with the head having a centralopening therethrough, and a spring extending entirely Within saidopening and attached at one end end enlarged or provided with a head toretain the bobbin on said support.

3. In a bobbin spindle, the combination With the head having a centralopening therethrough, and a spring extending entirely Within saidopening, and attached at one end in said head, and adapted at its otherend to engage one end of the bobbin support, of said bobbin support,adapted to extend at lone end loosely Within. said head, and to be re'-tained therein by said spring, and having an annular shoulder to engagethe end of said head, and an enlarged end or head on its other endadapted to retain the bobbin on said support.

HORACE WYMAN.

